Type chase shifting means in hot die stamping machine



sept. 27', 1955 A. K. ARNQLT 2,718,846

TYPE CHASE SHIFTING MEANS IN HOT DIE STAMPING MACHINE Filed Aug. 8, 1951 3 Sheets-Sheet l U gf fi I 5i/ l L .Il l E 30 1 o o 3 l f Sept. 27, 1955 A. K. ARNOLT TYPE CHASE SHIFTING MEANS IN HOT DIE STAMPING MACHINE Filed Aug. 8, 1951 3 Sheets-Sheet 2 Sept. 27, 1955 A. K. ARNOLT 2,718,845

TYPE cHAsE SHIETING MEANS 1N HOT DIE STAMPING MACHINE Filed Aug. 8, 1951 A s sheets-sheet s United States Patent O TYPE CHASE SHIFTING MEANS IN HOT DIE STAMPING MACHINE Arthur Kenneth Amolt, Chicago, Ill. Application August 8, 1951, Serial No. 240,956

Claims. (Cl. 101-9) The present invention relates to a book binding machine, and more particularly to a machine for embossing or printing titles on book covers.

In binding periodicals so as to provide bound volumes, suitable book covers of proper size are made and imprinted with the title and other information, such as the volume number. Quite commonly such imprinting is done in gold leaf. In the past this process has 'involved appreciable manual labor. Customarily a chase is provided having suitable longitudinal configurations for cooperation with a way provided in the frame of the embossing or printing machine. The chase generally had been provided with a handle for its removal from the printing machine. During the time that the chase was removed from the machine, it was mounted on a heating device. The machine itself was provided with a suitable source of heat for heating the type or the plate during the embossing or printing operation. The chase commonly employed was quite heavy, and hence an appreciable amount of heat could be stored therein. The effort required to remove the chase for the purpose of changing the type was quite appreciable and great care had to be exercised in order to reinsert the chase into the machine.

From the foregoing it becomes apparent that it would be desirable to provide an improved arrangement whereby the manual labor needed for handling the chase would be minimized and the necessity of heating the chase, while out of the machine, would be obviated. In accordance with the present invention it is proposed to provide an improved arrangement which not only will minimize the time consumed in changing types or plates, but which also will provide a more exact control of the heat which is applied to the type or plate.

It therefore is an object of the present invention to provide an improved machine for embossing or printing titles on book covers.

A further object of the present invention is to provide a machine for book bindery use for printing titles on covers, which will greatly minimize the labor heretofore needed.

A further object of the present invention is to provide an improved machine for embossing or printing titles on book covers which has a more exact control of the heat applied to the type or plate.

A further object of the present invention is to provide a machine for embossing or printing titles on book covers, which facilitates the changing of type or plates.

Still another object of the present invention is to provide a machine for printing titles on book covers which has a continuously heated type chase.

Other and further objects of the present invention subsequently will become apparent by reference to the following description taken in conjunction with the accompanying drawings, wherein: l

Figure 1 is a plan view of a machine embodying the present invention;

2,718,846 Patented Sept. 27, 1955 ICC Figure 2 is a side elevation of the machine shown in Figure 1;

Figure 3 is a front elevation of the machine shown in Figures 1 and 2;

Figure 4 is a partial side detail of one of the elements of the machine shown in the preceding figures;

Figure 5 is another partial view showing a portion of the front detail of the machine shown in Figure 3;

Figure 6 is a plan view of another embodiment of the present invention;

Figure 7 is a side view Figure 6; and

Figure 8 is a partial front detailed View of the embodiment shown in Figures 6 and 7.

Referring more particularly to Figures l, 2 and 3, it will be seen that an improved machine for embossing or printing titles on book covers has a frame formed of two vertical side members orv plates 11 and 12 connected together at their top by a transverse member 13. From the front view in Figure 3 it will be noted that the side members 11 and 12 near the lower portion carry a supporting shelf 14, and at an intermediate point carries a guide structure 15, the purpose of which subsequently will become apparent. Near the front and the top of these side plates 11 and 12 are located two transversely arranged bars 16 which support a head assembly subsequently to be described.

Mounted upon the shelf 14 is a cam shaft 17 carried by a plurality of support bearings 1S and 19. The cam shaft 17 carries a pair of identical cams 21 and 22. Between the cams 21 and 22 there is located a wheel which is engaged by a drag and brake 23. The end of the cam shaft 17 is connected to a clutch 24 for coupling the shaft 25 of a motor 26 to the cam shaft. The motor 26 is connected to the shaft 25 through a speed reducer 27.

A bed or base table 28 is supported by two vertical reciprocable members 29 and 31 carrying cam follower rollers 32 and 33 respectively, which engage the cams of the embodiment shown in 21 and 22. The reciprocable members 29 and 31 are suitably supported by the guide structure 15, which is readily seen in Figure 3. The details of this structure are not deemed to be of especial pertinence to the present invention, since any suitable construction commonly employed in machines of this type may be utilized. The bed or base table 28, therefore, is arranged to be reciprocated from the solid line position shown in Figure 2 to the dotted line position. This is accomplished by manipulating the safety handle 33, which moves a dog 34 so that the clutch handle 35 mightbe moved to actuate the clutch 24. This safety feature is provided so that the operators hand will not come between the bed or base table and the head assembly when the cams move the members 29 and 31 upwardly.

The transversely arranged bars 16 near the top of the frame are suitably apertured to receive four threaded studs 36 provided with suitable nuts 37 and 38. The lower portions of the studs 36 engage a plate 40 Which has an inclined underside, as may be seen from Figures 2 and 4. The plate 40 is provided with four apertures through which are passed four rods 39, each carrying a suitable fastening nut 41 which engages a washer 42 bearing against a spring 43. The spring 43 engages the top surface of the plate 40. The lower ends of the rods 41 are embedded in a bottom plate 44. Between the bottom plate 44 and the upper plate 40 there is positioned a wedge 45 which carries at its side a rack 46 engaged by a gear 47. The gear 47 is fastened to a shaft 50 which carries a crankf48 having a handle 49. A suitable lock wheel 51 is provided to prevent accidental displacement of the crank 48. The bottom plate 44 carries a longitudinally slidable shaft 52 having at its rearmost end a` plurality of counterweights 5.3. As seen in Figure 2 the forward end of the shaft 52 carries in depending relation the chase assembly 54, and at the rear end the shaft- 52 carries in upwardly,` projecting relation the counterweights 53 which have a mass substantially equal to that of the chase assembly 54. The counterweights balance a chase assembly 54. The shaft 52 is arranged for. longitudinal movement and limited rotation by. means of a handle 55. The lchase assembly is a portion of the 1 assembly rotated toa position so that the type platecarried thereby will be presented upwardly and may be readily removed-and replaced from above the shaft 52.

The details of-the chase assembly 54 will be readily understood by referring particularly to Figures 3 and 5. The'shaft 52 at its forward end is connected to a block 56.1 kwhich carries a depending frame having lsidel support members 57 and 58. These members are connected totthe` type chase 59. 59'is pivotallymounted so that it may betmoved from the solid line position shown in Figure to. the dotted line position. To facilitate this,the side lmember 61 Ais connected to a crank 62 `having a handle 63. 4The handle 63 may be of the spring biased latch type so as to engage a suitable detent on the front surface of thechase 59. Immediately yadjacent the chase.59 ,there is located a heating element 64 which is supplied by electric power froma pluralityfof conductors 65 shown in Figure l as passing through the shaft 52, which ishollow. The

frame 11 has-a table 66 extending to oneside for conveniently supporting material to be placed upon the reciprocable bed or base table 28. v

In operation the chase assembly 54 is moved forwardly by pullingon the handle 55 and slidably withdrawing .the shaft 52 until the chase assembly 54vhasbeen entirely withdrawn from thev ways 56 carried bythe block `44,. l

Thereupon the handle 55 may be rotated until it stops at a position, such as that shown in Figure 5. This places the g chase 59 in such outwardly or upwardly facing position that suitable access is had thereto for the insertion of type or type plates or replacing the same. During the time thatthe chase 59 is in the position shown rin Figure 5, it is beingheated continuously. Upon completion of the insertion or replacement of suitable type lmaterial into` the chase, the chase assembly 54is rotated Vback to its original downwardly facing position whereupon the shaft 52.is shifted inwardly to move the chase assembly to` t thefposition shown-in solid lines in Figure 2. `The material to be impressed or embossed isy placed` upon the bedk 28. The operator then actuates the ,safetyhandle 33,` against the action of its biasing spring and operates theclutch to bring about a reciprocationof the bed table 28. .This moves the material against lthe type in the chase 59 lcausing an impression to be made onA the bookcover.

vIt will now vbe appreciated that the arrangement thus fardescribed and illustrated does not require any manual effort in-.liftinga comparatively heavy chase. The chase z is continuously supportedby thehorizontally slidable shaft 52and'hence the only effort required is the comparativelyslight effort to produce the necessary reciprocation and rotation of the shafty 52 to withdraw the chasel assembly from lthe head. Thechasey can nevery n cool'through inadvertence, as has occurred in prior arrangements. ferencesin type plates an` adjustment for. depth of impressionis necessary, this can be effected by loosening the One side memberl of the chase f lock wheel A51 and manipulatingthe crank and handle.

- rod or shaft 73, .which is formed in two sections 74 and '75 connected by a hinge '76. The outer end portion 75 carries a suitable counterbalance 77. The outer portion 75 is also hollow and carries an electrical conductor 78 which leads to the heating element for the chase 79. Suitable heat insulation l81 isxinterposed between the 'chase/79 and a'support -member 82, which is secured to the inner shaft portion 74. The bottomframe member 83 carries a reciprocable bed 84.which may be moved from the solid line positionshownin Figure 7 to the dotted line position. 1

A suitable handle 85 1s connected to one end of the shaft portion 74 so thatthis shaft may be reciprocated. When the shaft assembly 73 has beenmoved `so that the outer shaftportion-75 is within thesupporting block 72 and the jointwith the pin-7 6 is beyondthefront of the block 72, lthe handle 85 may be rotated. Rotation of the handle 85through 180 permits k thehinge portion of the shaft assembly 73 to move; Infront of the frame 83 there is provided a suitable supportstand 86 carried by an appropriate base 87.- A stand 86has an arcuate cross memberSS for receivingzthe-shaft -portion 74. The shaft 79 then vwillassume the position shownin dotted lines in Figure 7.k kIn that position, type, may be readily removed from the chase and new type inserted therein. f During the entire time of the.type changing operation, the chase 79 iscontinuously heatedby -its electrical heater.` In order to restore the chase 79fto an operative position within the machine, the handle 85 is lifted t0 bring the chase into a horizontal plane. T hereuponthe handle isV rotated. The

, hinge arrangementprovided-,by theshaft portions 74 and 75 'is such that the hinge locks ,the two shaft portions into coaxial relationshipso that byl pushing on the handle 85 the chase assembly will-,move intoposition without diculty. Whenkthe assemblyhas been. moved to the solid line shown inV Figure 7, material may be placed upon the reciprocable ybed 84, whicheventuallyis lmoved to the dotted line position shown inJ Figure l7 to bring about an impression or printing on, `the book cover. i y

It will bey appreciatedl by. those lskilled in the art that the arrangementl illustrated inV Figures'6,v7 and 8 is another one which greatly greatly reduces the amount of manual effort required, and ,whichmaintains the type chase heatedat lthe proper temperature at all times irrespective as to whether thevchase is in position for operation or whether'it is in "a positionwhere type is to be changed.

whilefer the 'purpose of'piliustrtingand describing the present invention several preferred embodiments have been shownin the drawings, it is to be'understood that the invention is not to be limited thereby,` since' such variations in the construction andiinthe arrangement of the components employed are'contemplatedas maybe commensurate with the spiritrandscopeof the linventionrset forthv in the appended claims:l ,-5

Ijclaim as myv invention: 1` i v l. In a book cover vstamping Adevice ofthe class described, a frame, a shaft arranged horizontally of said frame, bearing means carried by sadframe for mounting the shaft for axialmshifting movement relatively to said frame, a type chase affixed to rsaid shaft adjacentl to one Where for certain materials of Hcertain difl end thereof and normally so disposed als to face radially downwardly therefrom within'said frame position for effecting a printing impression, and means operable to axially shift said shaft relatively to said frame sufficiently to withdraw said chase from within said frame and thereafter to rotate the shaft about its axis to face said chase upwardly so that when the chase is thus withdrawn and rotated with said shaft the type carried by the chase may be changed from above the same while the chase is still carried by the shaft, said shaft being of a length sufficiently greater than that of its bearing means to be retained and supported in said frame by said bearing means when said chase is in withdrawn position.

2. A book covering stamping device of the class described, comprising a vertical frame, a shaft arranged horizontally of said frame, bearing means carried by said frame for mounting the shaft for axial shifting movement relatively to said frame, said shaft having a longitudinal bore, a type chase affixed to said shaft adjacent to one end thereof and normally so disposed as to face radially downwardly therefrom within said frame in position for effecting a printing impression, means operable to axially shift said shaft relatively to said frame to move said chase laterally outwardly from said frame and further operable to rotate the shaft about its axis to face said chase upwardly, means within the body of said chase for heating the s ame, and means connected with said heating means for continuously supplying heat energy to said heating means through the bore in said shaft, said shaft being of a length sufficiently greater than that of said bearing means to insure that its end portion remote from said chase will be retained in and supported by said frame when the chase is moved outwardly from said frame.

3. A device for stamp printing on book covers, comprising a frame having a head assembly and a cooperating bed associated therewith for vertical reciprocal movement relative to each other, said head assembly including means furnishing a horizontal guide for positioning a chase facing said bed, a shaft associated with said head assembly ad jacent to said chase guide, bearing means for mounting said shaft for axial shifting movement relatively to said guide and for rotation about its longitudinal axis, said shaft being of a length at least twice the length of said head assembly along the axis of the shaft, a chase xed on said shaft adjacent to one end thereof and normally slidably engaged in said guide so as to face downwardly toward said bed, the other end of said shaft extending outwardly from said head assembly, and means operable to shift said shaft axially to slidably withdraw said chase from said guide and also to rotate said shaft to cause said chase to face upwardly when the chase is in withdrawn position, the relative length of said shaft and the bearing means of said head assembly beng such that the end of the shaft opposite that carrying the chase is supported by said head assembly when said chase is in withdrawn position.

4. A device for stamp printing, comprising a frame having a head assembly and a cooperating bed associated therewith for vertical reciprocal movement with respect to each other, said head assembly comprising a chase guide having horizontal slideways, a horizontally disposed shaft mounted on said head assembly and provided with bearing means accommodating it to axially shiftable movement in said assembly and for rotation about its axis, a chase rigidly mounted on said shaft and normally slidably engaged in said chase guide in position facing downwardly therefrom toward said bed, and means operable to shift said shaft axially to move said chase laterally outwardly from said chase guide and also to thereafter rotate said shaft to cause said chase to face upwardly, said shaft being at least twice the length of the bearing means of said head assembly in the direction of the shaft axis so that the shaft will be in supporting engagement with said head assembly when the said shaft and chase are in outwardly shifted position.

5. A stamp printing mechanism, comprising a frame having a head assembly and a cooperating bed arranged for vertical reciprocable movement relative to each other, said head assembly comprising a chase guide having horizontal slideways, a chase slidably mounted in said chase guide in position facing downwardly therefrom toward said bed, a chase operating shaft horizontally associated with said head assembly and provided with bearing means for mounting it for axially slidable movement therein parallel with said chase slideways and for rotation about its axis, said operating shaft being formed in at least two sections connected together by a hinged joint, one of said sections being rigidly connected to said chase for moving said chase in and out of said chase guide upon axial shifting of said shaft and the other of said sections normally extending axially beyond said head assembly, means operable to shift said shaft axially to withdraw said chase horizontally from said guide and also for thereafter rotating said shaft and with it said chase, and means for supporting the section of said shaft carrying said chase when said chase is shifted to a position free from said guide, the other section of said shaft being drawn into said head assembly and bearing means for support thereby when said chase is in said free position.

References Cited in the file of this patent UNITED STATES PATENTS 587,562 Stollstorff Aug. 3, 1897 775,257 Steele Nov. 15, 1904 994,686 Mitchell June 6, 1911 1,561,176 Lichtenstein Nov. 10, 1911 1,733,876 Halvorsen Oct. 29, 1929 1,987,370 Pleger Jan. 8, 1935 2,122,669 Wickwire July 5, 1938 2,489,229 Steckley Nov. 22, 1949 

